The rhizome in Pteridium is subterranean with numerous dichotomous forkings and is capable of indefinite growth. Pteridium aquilinum, the common bracken fern, is the first to invade cultivated fields and when once established is difficult to eradicate. This is one of the ferns able to compete with flowering plants as a weed. It is mainly due to the great depth [...]
In this article we will discuss about the morphology of marsilea with the help of a suitable diagram. The genus Marsilea with about 60-65 species is distributed in temperate as well as tropical regions. Most of the species occur in Australia and about ten species have been recorded from India. Marsilea has a slender creeping, dichotomously branched rhizome of indefinite [...]
In this article we will discuss about the anatomy of marsilea with the help of diagrams. Occasionally, the same species may be found to grow in water as well as on land and consequently land form and water form are known to occur in the genus. Land and water forms can be easily distinguished on morphological grounds. Land forms (Fig. [...]